how to define a default/fallback block in jade

Question

how to define a default/fallback block in jade

I have a layout that looks like this:

body
    header.l-header.l-site-width
        block header

    // include the block with the name body form whatever file that uses layout
    .l-body.l-site-width   
        block body

    footer.l-footer.l-site-width
        block footer

now i don't specify a header block in the file that is using the layout, i would like to use a default include.

I tried:

block header || "something else"

in the best case:

block header || include ../partials/base/header

it does not work, but does not trow an error. Any idea how to do this?

node.js
jade

Answer 1

You can actually just write your default code in the header block.

block header
  include ../partials/base/header

If you now extend your layout you can overwrite the contents of the block with a simple standalone block statement.

extends layout

block header
  ... your code ...

Alternatively you can use append or prepend to add to the block, in this case the old content persists.